Improvement in measuring-pumps



TrRQVESTAL. Measuring-Pump.

No 206,060.' Patented July 16, I878.

WITNESSES wfl/M INVENTOR ATTORNEYS.

UNITED STATES PATENT OFFICE.

TILGHMAN R. VESTAL, OF FALL RIVER, MASSACHUSETTS.

IMPROVEMENT lN MEASURING-PUMPS.

Specification forming part of Letters Patent No. 206,060, dated July 16, 1878; application filed April 26, 1878.

To all whom it may concern:

Be it known that 1, TILGHMAN R. VESTAL, of Fall River, in the county of Bristol and State of Massachusetts, have invented a new and Improved Measuring-Pump, of which the following is a specification:

In the accompanying drawing, Figure 1 represents a vertical central section of my improved measuring-pump; Fig. 2, a horizontal section of the same on line a: :0, Fig. 1'; Fig. 3, a front view of the pump; and Fig. 4, a detail perspective view of a modified dischargefaucet.

Similar letters of reference indicate corresponding parts.

This invention relates to an instrument for drawing liquids or gases, either for measurin g, bottling, or other purposes, which has the advantage that any desired quantity may be measured oft quickly and in accurate manner by the use of one vessel only, without exposing the liquid to dirt and flies, the liquid being finally dropped directly into the receiving-receptacle.

The measuring-instrument may be connected to one or more reservoirs or sources of supply, and liquids be drawn from either one of the same at pleasure, and then dropped quickly into the receiving-vessel. The quantity is readily inspected and accurately determined in the measuring-vessel, so that in case the purchaser is not suited the liquid can be returned into the supply-receptacle without the least loss or trouble.

The invention consists of a graduated and air-tight cylinder, in combination with a piston, central faucet=plug, and connecting supply-tubes that extend into the different vessels or sources of supply, and are opened or closed as required, the liquid being drawn into the measuring-vessel by atmospheric pressure on raising the piston, and dropped from the cylinder by the piston on closing the supplytube through a bottom spout of the plug.

Referring to the drawing, A represents the glass cylinder of my improved measuringpump, which is supported by hermeticallyclosing bracket-heads A in vertical position. The top and bottom of the cylinder are tightly applied to the supporting bracket-heads A by longitudinal bolts a, which answer the purpose of tightening up the heads of the cylinder by drawing the rubber packing tightly thereon, and of preventing the cylinder from beingbroken. They also preventthe lower support, which forms at the same time the outer cup of the compound faucet, from revolving when the inner plug is turned to regulate the supply and discharge.

The lower support A of the glass cylinder is connected by a number of pipesfiB, to the different vessels or sources of supply from which the liquids are to be drawn and measured 015, it being hollowed out in the center to receive the slightly-tapering plug D, which is centrally perforated, and also laterally perforated at one point to connect with the different pipes leading from the vessel to the plug D. Below the lower fixed support is arranged a movable ring, E, that is provided with a square hole in the center, through which the plug D passes. The ring E is secured firmly in place in the plug by the nut D turning on the threaded lower end of the plug. At the lower end of the plug D is arranged a two-way cock, D and a soft-rubber spout, D that is inserted into the vessel to be filled, said spout being attached by a screw-tap to the plug, and provided with a side crease to allow the air to escape from the vessel, the crease being clearly shown in Figs. 3 and 4. The revolving ring E is provided with knobs, which act also as set-screws, for preventing the ring turning independently of the plug. The knobs and suitable marks of the ring serve for the purpose of conveniently setting the valve to any one of the supply-tubes from which the liquid is to be drawn out, so as to be ready for the action of the drawing-piston Bin the glass cylinder. The piston B is raised or lowered by means of a piston-rod, B, and the height to which it is drawn in the graduated scale of the glass cylinder is readily observed by means of a reflecting mirror, F, that is supported at suitable inclination toward the cylinder, so that the position of the piston is conveniently noticed from above.

The piston-rod B is made hollow, and provided with a top screw-cap, that is used for allowing air to escape or enter the cylinder, a portion being required for driving out the liquid measured off by the faucet D so that it will not mix with the next liquid that may be measured mi. The handle of the piston is to be long enough to be drawn up suttieiently to measure larger or smaller quantities, for whieh the cylinder is arranged. The piston-head is made of elastie material, and tightly but pliantly fitted to the interior surt'aee ot' the glass eylinder, the elastie head being serewed to the piston-rod by means of taps on eaeh side. A washer at the top of the plug l) and a bottom nut ot'the same are designed to keep the plug snugly in the lower support, so that the liquids will not mix or leak out through the apparatus. The supply-pipes are ent. with serew-threads at both ends, and the ends in the barrels or vessels provided with holes. and arranged to turn in a sleeve or bushing, t", elosed at the inner end, the bushing being provided with holes, whieh, by turning the supply-pipe, will be brought in eonneetiou with the holes of the pipe, so that the liquid may flow into the supply-pipe and into the upper part of the plug l), and then into the eylinder as it is drawn by the aetion ot' the piston. The supply may also be shut oft'by turning the supplypipe by means ot'a wreneh. so that the holes of the pipe will not register with the holes in the sleeve. The sleeve-valve should be kept elosed as mueh as possible, when the supply has been reeently replenished, until all foreign substanees, dregs, and sediments shall have settled, so as to prevent its aecumulation in the pipes and eause their stopping up by the same. The eylinder is wiped clean every time by the piston, which has to be freely lubrieated with the same liquid whieh the device is used to measure.

The plug may also be made in one pieee with the lower support of the pump without being turned at all, and the pipes then extended into holes of the central part ofthe lower support, and there direetly eonneeted with the discharge-faucet and with the cylinder, the supply depending entirely on the sleevevalves in the reeeptaeles or vessels. This arrange ment dispenses with the movable ring and knobs. The measuringpump should not be used for measuring liquids of a dissimilar nature in sueeession, sueh as molasses or kerosene; but it should be applied to measure ott' different grades of some liquid or gas.

By drawing oti' liquids 'ltltll are not desired to be measured-as, t'or instanee, hot and eold water-the lower support and the interior plug 1) are elosed at the top, and the latter provided with a handle at the upper end without requiring a bottom dischange-faueet, as shown in Fig. 4, they being then suflieient for drawing ofi' the neeessary water, the supply-pipes forming then a suttieient support for the apparatus. ly turning the horizontal oritiees of the plug 1) so as to form, partly, a eonneetion with two adjoining supply-pipes of sev eral grades of liquids, a mixture of the same may be drawn off at the same time, and this mixture graduated by diminishing one of the supplyholes and inereasiug the other according as the handle is turned to one side or the other. This is very eonveuient for drawing hot or eold water through the same faucet at the same moment, so as to render the mixture moderately cold or hot, as desired.

1y this instrument the number of t'aueets that are usually used for drawing ofi' ditt'erent kinds ot'liquids are dispensed with,and liquids of dit'terent grades may be mixed and drawn mi in quick and eonvenient. manner from several sourees of supply, and dropped into the receiving-vessel, the entire measuring deviee being inelosed, and not liable to dust or injury.

Having thus deseribed my invention, what I elaim as new, and desire to secure by Letters 'atent. is-

1. The combination of a graduated eylinder, having tightly-elosing supports or heads and interior piston, with a bottom plug, eonnecting with one or more supply-pipes, and having atixed adjusting-ring, and a discharge faueet and spout, substantially as specified.

:2. In a nieasuring-pump, the combination of a graduated eylinder and interior elastie piston, having hollow piston-rod and top cap, with tightly-elosing supports or heads, adjustable eenter plug, and diseharge-t'aueet and one or more supply-pipes, substantially as and for the purpose described.

3. The eombination of a faucet-plug, having radial perforations, with one or more supplypipes, having valves inside of the vessels, and with means for turning the pipes for opening or (losing the valves, substantially as speeitied.

TllltlllMAN ROSS VllhTAll.

'itnesses:

\YiLmAu S. GREENE, llmav lncx'rnu. 

